The journey from Ernakulam to Dehradun is a massive cross-country trip covering over 2900 kilometers. The most efficient way to travel is by flight from Cochin International Airport to Jolly Grant Airport. For those preferring rail, the long-distance trains are available, though the journey takes over 55 hours. You will cross the entire length of India, passing through multiple states.
Total Distance: 2900 km by road, 2500 km air distance.
Prepare for a very long journey; carry books and entertainment.
Direct flights are rare; expect a layover in Delhi.
October to March for pleasant weather in Dehradun.